Pilot Scale Study of Biological Phosphorus Removal Using a Modified UCT Process PDF Download
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Author: Wayne M. Karlovich
Publisher:
ISBN:
Category :
Languages : en
Pages : 558
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Author: Wayne M. Karlovich
Publisher:
ISBN:
Category :
Languages : en
Pages : 558
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Book Description
Author: P. M. J. Janssen
Publisher: IWA Publishing
ISBN: 9781843390121
Category : Science
Languages : en
Pages : 228
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Book Description
Biological phosphorus (bio-P) removal has become a reliable and well-understood process within wastewater treatment, despite being one of the most complex processes in the activated sludge process. Extended fundamental and full-scale research has been carried out into the bio-P process and the state-of-the-art is described in this report. A summarising historical overview gives insight into the establishment of the appropriate microbiological and biochemical basis of the process and the development of bio-P configurations in practice. Aspects of the bio-P process that have a direct influence on the efficiency of phosphorus removal are subjected to an in-depth investigation. This report presents guidelines for design and dimensioning in order to introduce and/or optimise the bio-P process in practice. Twelve bio-P installations are extensively described and the operational results and experiences are related to existing bio-P knowledge and guidelines. Based on a number of parameters, a comparison is made between the described bio-P plants. A steady state model is verified with extensive periods of practical experience of the plants. The bio-P model, which is provided on CD-ROM (available for download here), offers a reliable insight into the bio-P process, coupled with sensitivity analyses regarding wastewater characteristics and process parameters for the anaerobic volume and the P-ortho concentration in the final effluent. The report ends with a systematic approach to the design of the bio-P process, based on the background of the bio-P process itself, much practical experience and the analysis of operational bio-P plants. Also presented is a systematic approach to tackle operational aspects of the bio-P process in order to generate an acceptable low P effluent concentration. This optimisation of the bio-P process operation is supported by a decision diagram. Biological Phosphorus Removal will be an invaluable source of information for all those concerned with wastewater treatment, including plant managers, process designers, consultants and researchers.
Author: R. Ramadori
Publisher: Elsevier
ISBN: 1483160599
Category : Technology & Engineering
Languages : en
Pages : 405
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Book Description
Biological Phosphate Removal from Wastewaters contains the proceedings of an International Association on Water Pollution Research and Control Specialized Conference held in Rome, Italy on September 28-30, 1987. Contributors review advances that have been made in the removal of biological phosphates from wastewaters, both at the fundamental scientific level and in the practical application of the process. Topics range from the fundamental microbiology and biochemistry of the enhanced biological removal of phosphate to the practical full-scale plant experiences with phosphorus removal and sludge handling from such processes. This text is comprised of 43 chapters; the first of which describes the utilization of polyphosphate as an energy reserve in Acinetobacter sp. and activated sludge. Attention then turns to metabolic control in polyphosphate-accumulating bacteria and its role in enhancing biological phosphate removal. The biochemistry and energetics of biological phosphorus removal are also considered. The next section is devoted to process modeling and includes chapters that explore the kinetics of biological excess phosphorus removal; factors affecting anaerobic stabilization during biological phosphorus removal; and the behavior of magnesium in biological phosphate removal. In the next section, bench/pilot-scale studies are presented; one of which investigated the reduction of returned phosphorus from a sludge treatment process. The book concludes with a discussion on phosphate removal mechanisms and pilot- and full-scale experiences. This book will be of interest to students, practitioners, and policymakers in water pollution control.
Author:
Publisher:
ISBN:
Category : Chemicals
Languages : en
Pages : 132
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Author: Yukio Suga
Publisher:
ISBN:
Category :
Languages : en
Pages : 86
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
USEPA is currently establishing requirements for minimizing discharges of nutrients in the nation's receiving waters. The enhanced biological phosphorus removal (EBPR) process is based on the poly-phosphate accumulating organisms' (PAOs unique features of luxury phosphate uptake during aerobic conditions and phosphate release in anaerobic conditions. The objective of this study was to investigate the EBPR process at three different levels: full scale and pilot scale level, micro level and molecular level. Two Cincinnati MSD wastewater water treatment plants(WWTPs), the Mill Creek Plant and the Sycamore Creek Plant, as well as a WWTP in Butler County, were chosen to be the research sites. Water qualities were monitored along each treatment process, and activated sludge samples were taken from each plant for micro and molecular level studies. Pilot plants were operated at each plant to evaluate alternative operation modes to achieve the optimum phosphorus removal rate. Operation and design suggestions were made based on the full scale investigation and were confirmed through the pilot plant study. A phosphate-selective microelectrode was developed in this research and used to obtain P-profiles across activated sludge flocs. This cobalt-based phosphate ion-selective microelectrode has a tip diameter of 5︢︣20 þm and shows good selectivity towards all three forms of ortho-phosphate ions, H2PO4-, HPO42-, and PO43-. A calibration curve at pH 7.5 with a slope of 31.5 mV per decade change of concentration and a R2 value of 0.99 was obtained. A P peak was found in each P profile of flocs taken from the anaerobic sections at the different treatment plants. This phenomenon could be caused by the DO profile present (lowest DO at the center) or by mass transfer resistance. Fluorescent in situ hybridization (FISH) was used as a molecular biological tool to show the existence of PAOs in the activated sludge. Three oligonucleotide probes used in this study-PAO651, PAO846 and Rhc0439-were purchased from the DNA core-lab at the University of Cincinnati. The images showed the existence of PAOs at the Mill Creek and the Butler County plant.
Author: Lawrence Schmid
Publisher:
ISBN:
Category : Lime
Languages : en
Pages : 68
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Author: R. F. Drnevich
Publisher:
ISBN:
Category : Phosphorus
Languages : en
Pages : 156
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Book Description
Author: Nigel J. Horan
Publisher: CRC Press
ISBN: 9781566760997
Category : Technology & Engineering
Languages : en
Pages : 396
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Book Description
Topics in the book include: novel processes, removal of ammonia and nitrogen, retrofitting/upgrading treatment plants for nutrient removal, and operating experiences at full-scale plants. Nutrient removal from wastewaters is a critical topic in every region. Problems can arise from domestic sewage, industrial wastewater, or rainwater runoff.
Author: Jae Kwang Park
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 20
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Book Description
